Regex in Python

Well, I was trying to use regular expressions in Python. I wrote a small script, so I thought I'll will post it and make it open for discussion. As I learn more I'll keep them posted too, and if anyone has any comments please do let me know.

Code: Python

#!/usr/bin/python

importre

print"Content-Type: text/html\n\n"

regx = re.compile(r"([A-C])([a-x])?")# Should match either A,B or C, and another character between a-x after tht